Home / 38,072.81-57,114.68-11,779.61

Finding the Fourth Proportional to 38,072.81, 57,114.68 and 11,779.61

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Solution

The fourth proportional to 38,072.81, 57,114.68 and 11,779.61 is: 17,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,072.81 : 57,114.68 = 11,779.61 : x
  2. Step 2: Convert to fraction form
    38,072.81/57,114.68 = 11,779.61/x
  3. Step 3: Cross multiply
    38,072.81x = 57,114.68 × 11,779.61
  4. Step 4: Simplify right side
    38,072.81x = 672,788,311.20
  5. Step 5: Solve for x
    x = 672,788,311.20/38,072.81
  6. Step 6: Final answer
    x = 17,671.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.